An ART1 microchip and its use in multi-ART1 systems

Recently, a real-time clustering microchip based on the ART1 algorithm has been reported. This chip was able to classify 100-bit input patterns into up to 18 categories. However, its high area consumption (1 cm²) caused a very poor yield (6%). In this paper, an improved prototype is presented. In this chip, a different approach has been used to implement the most area consuming elements. The new chip can cope with 50-bit input patterns and classify them into up to 10 categories. Its area is 15 times less than that of the first prototype and it exhibits a yield performance of 98%. Due to its higher robustness, multichip systems are easily assembled